Bank error (not in my favour)

[NCforthebillionthtime]

I bought a 2nd hand car on Friday having agreed to pay seller in cash. Spoke to bank about withdrawing the sum of money and then went to collect it. They were expecting me, and the £7200 was ready for me when I reached the front desk. The cashier counted out the £200 in front of me but told me that the £7k had already been double counted. It was in a sealed bag of £5k with 2 x £1k bundles with paper tape round it. I took the wad home -feeling like a drug dealer- checked the £200 again and counted that there were 2 wads and a 5k wad, paid for car, had a nice weekend.
Fast forward to today and very trustworthy seller has advised me that when he deposited in the bank, there was £60 missing from one of the 1k bundles.
I'm totally astounded that the bank could have made this mistake. I am really confident that the seller is not chancing it, and no one could have taken any of the money as it was only in my possession for about 2 hours and never unattended.
I've spoken to the bank who have said there is nothing they can do as the paper tape surrounding bundle has now been discarded by sellers bank.
I really don't know what to do. I don't want to pay another £60 but also feel bad for the seller.
Any ideas wise mumsnetters?

No no no dont offer anything, dont split anything. Contact the bank and get them to double check. I worked ina bank for years and any shortfall etc would be noted. If your bank have checked and state it was correct then it likely was. If it wasnt the cashiers till wouldnt balance

Only on response from the bank respond to the seller with your findings. His fault he should of counted the cash in front of you. He would of counted it before banking it im sure. It could be an honest mistake somewhere but dont be out of pocket.

Not your fault or your problem OP.
The Seller should have counted it at point of sale. The burden is on him to prove you didn't give him all the money, not for you to prove you did.

I can't believe you didn't count the money you were given by the bank, especially the two £1000 bundles. You don't know how much you actually handed over to the seller. Not counting makes it difficult to pinpoint where the problem lies. You are as much at fault as the seller, but they will be forced to bear the entire loss if you choose to do nothing.

Bank systems are more reliable than random individual people, but they are not faultless, and neither are bank staff. People have a responsibility to look after their own interests when they interact with organisations such as banks. If nothing else, history has shown that they look after their own interests, not yours, so don't blindly agree with whatever they say.

Whilst you should have counted the money so should the seller when he received it. In this case I would say it's his fault. Plus you don't know that the money was short, anything could have happen to those money bundles once they left your possession.

I'd say you've contacted your bank they can't help - sorry.