Payment difficulties

[mictel-47]

Hi there. I recently tried to buy a product and it came back saying that my bank details are wrong, I tired a fdew more times and the same results came back to me. 

I then looked at my bank account and it showed in my transaction history that I have 4 pending transactions going towards the buyer, my question is how is this possible, considering that it kept coming up saying my payment can't be processed?