Then tell this person to provide full information regarding sender/receiver wallets, etc..
Especially since the receiver seems to be some service, they are the only one able to help you.




Are you with "wallets" actually referring to a wallet?
Please be more precise.

Who is the receiver? Which service/website/wallet etc. ?
Tell your friend to contact the support of the receiver (website, service, etc.). Addresses do not expire. The used service received the BTC.

Again, addresses do not expire.

If you are using a centralized wallet or exchange, then they can change which addresses are linked to your account and which addresses you are allowed to use to deposit coins to. That is entirely dependent on their internal database and has nothing to do with the bitcoin protocol. The addresses in question, although they may no longer be linked to your account by the exchange, have not expired and the exchange will still have full access to them.

If you have sent coins to an address which the exchange have de-linked from your account, then your only option is to contact their support directly and explain the situation. Since addresses do not expire, the exchange will be able to access those coins and credit them to your account. Whether or not they are willing to do so is another matter, however.

If you have an unsolved problem, please describe it as precisely as you can.

As previously mentioned, addresses do not expire, ever.
Transactions can not be reverted.

Please tell us which wallet you have used, where you sent the coins to and what exactly the problem is.
The more information you provide, the easier it is for us to help you and therefore you'll receive a solution faster.

Addresses do not expire. You can use the same address as many times as you like over as many years as you like. As long as you do not delete the wallet file, or always have a back up, then you will always have access to that address. If someone has sent you money and you cannot see it in your wallet, then either they have sent it to the wrong address or your wallet is not syncing properly.

Address do get expire. You can find this in many large wallet exchanges or something.
Here is one example which proves address gets expired
https://bitcoin.stackexchange.com/questions/12536/sent-bitcoins-to-an-expired-address-how-do-i-get-back

You mean that expiration Date feature on electrum, right? A bitcoin address never expires. You or the person you are sending bitcoins will still receive funds in the address and be able to spend them even if they are sent after the expiration date.

The Expiration feature is used for payment request QR code so that the person or customer who's supposed to send you some BTC can not send it to you after the quoted price has expired at the set time.

Expired means a wallet which private key has lost. Yes, no private key no fund to access. It is lost.

Once a tx get at-least 1 confirmation then it's expensive to recover the fund, once it has 6 confirmations then forget about it. In general, no funds can be back unless you have access of the fund on the wallet it is in.

We are a new Defi from Malta.

We wanted to have the above listed on board with our team. Bounty Manager is optional, we do not need it much.

Ann Thread is needed now.

Thanks

My Blockchain BTC wallet balance disappeared almost 2 days ago. I tried refreshing several times but says timeout or error fetching balance. I tried recovering the funds yesterday by creating another wallet, my balance appeared for couple of minutes and disappeared again after receiving and sending coins. I have contacted blockchain but no response for over 24 hours. Can I re-recover the funds using another wallet again? Would there be any implication doing that? Will I still find my funds in the new wallet?