I was presented with a similar case £30 job priced very well was told head office only,60 days normally I said to the manager can you push for 3 weeks? At that point if she said no I was ready to walk away, but she said yes so I took a punt and it was fine paid within the month and I even get an email from the accounts department now , don't give up hope I would speak to head office see if you can negotiate if they do , take a punt and weigh it up only 1 clean credit ofc
Message for everyone Don't accept 60 days payment the more of us who refuse the more of them will start to realise