I was given this account by a close friend of mine.
strangely I have known BTC for a long time in 2015, even I bought about 19 BTC at a price of $210 with a capital of around $4000, but I only found out about this forum in 2021 and was also told by my friend.
so, i have about 19 BTC and i keep it in blockchain.com mobile wallet. bad thing happened to me that my phone was stolen by someone in 2016, even i feel frustrated after seeing current BTC price

. At that time I also registered using the cellphone number , made a 4 pin code and the number was saved on the cellphone, I couldn't do much to try to access it because all the data was stored on the cellphone,on the one hand I still have a copy (Prahse Secret Privatkey Recovery) but I'm missing the (Prahse Secret Privatkey Recovery) at paragraph 12

I want to ask for help from the community here to help me, is there any possibility to get BTC back? if anyone can do it then i don't mind giving 3 BTC bonus.
First of all edit your post and delete your name and your telephone number as it is important that you keep your privacy, and about the topic at hand there is no way to recover your coins, I know this is not what you want to hear especially as you bought a decent amount of coins so long ago and it could mean an easier life if you got access to those coins, but there is nothing to do, you are the one responsible to protect your coins and since you failed then no one else will be able to get access to them.