The protocol is very flexible if both parties agree to it. Someone once sent me mexican dollars or some shit but I could convert them pretty cheaply within the fiat institution so i just asked them to send $5 extra to cover that for me and completed the trade. Especially when you think it's not malice but a mistake, then I'd just point out the mistake and tell them to stick to the offer next time.
Haveno
You can open dispute, you would most likely win
What this winning would likely mean to me? I will get trading partner sec. deposit, part of it, and they will chargeback their full payment (reversible bank payment method)?
you can wait longer to release the payment. otherwise withdraw the money from your bank
Thanks, if you know how long and why, please tell me. By withdrawing you mean making money unavailable for charge-back? I thought it would only cause negative balance/debt or bank request I deposit the funds.
If your trading partner changes any aspect from the trade you can get an arbitrator involved. That's why we have a security deposit. The arbitrator then decides if you are getting scammed by the other party in any way and if so you get (part of) their security deposit (and maybe your money back depending on what exactly happened).
Do not just blindly suck up any fees that weren't mentioned in the original trade.