I deposited around 30€ on binance to put these on my android wallet to do the CPFP but I noticed that after sending via Binance my wallet will receive only 0.00034659 BTC (12€)
I don't follow where you have lost 18€ in fees. Did you withdraw money from Binance to your Android wallet for the sole purpose of performing a CPFP? And Binance's withdrawal fee is 0.0005 BTC? That's ridiculous.
Assuming your CPFP transaction is around 300 vbytes in size, then combining that with your current transaction of 369 vbytes which pas 932 sats, then your new transaction would need to pay a total fee of ~80,000 sats. You can pay all 35,000 sats as a fee, but that would only bring you to an equivalent rate of around 52 sats/vbyte, which at the moment is still around 7 MB from the tip. That's still a lot higher than your currently unconfirmed transaction though, and might confirm within the next 12-24.
Haven't done it yet though, like you guys are saying it seems like such a waste to use those 30€ on binance to CPFP.
I did need the initial transaction urgently but if I can save like 30€ just by waiting I think i'll just wait untill the BTC gets refunded to my android wallet.
Also what I find kinda silly is that If the transaction has 0 confirms in over 48hours that it should be automatically dropped from the mempool.
I don't know how the mempool works but waiting 2-3weeks to potentially get the BTC back on the android wallet feels also like a waste
And these TX accelerators are the biggest joke yet these want to charge me 170$ for a 175$ btc transaction lmao