I sent a payment that was rejected by blockchain and pruned because of to low of a fee, it took about 5 days to be sent back to my electrum wallet and looks like it was sent out again? Where did the payment go? I was under the impression after being rejected it would have just come back to my wallet and stayed. The BTC address it was sent to changes every few days or so, does this mean that I've lost the BTC forever?

Would be greatful for any advise