I have a rental property and about 6 weeks ago I asked a tradesman if he could take a look at a job that needed doing. He didn't turn up on day he promised or any day that week. So contacted him and he said he forgot but would go round that week which he didn't so 3 weeks have passed and my husband is due time off so he was just going to go round to see if could fix problem. Then suddenly I receive a message and invoice saying the work has been completed and an invoice to be paid in 4 days. It isn't cheap at £160 so not sure how to handle this.