I have had various people do work for me, architects, builders and the like. They do work, they send me invoice, I pay, all is good.
However, I have had two people who have done different jobs for me, neither of whom have sent me any invoice or similar bill. I have asked them both to send me the invoice so that I know how much to pay and how to do the transaction. Neither have supplied the invoice.
What are my options? Currently I owe them for the work, but I don't know the exact figure, or how they want to be paid. As I have asked for payment details, and they haven't provided them, I'm not sure what more I can do. Will this debt hang over me for life until they remember to send me the details, or does it get cancelled/written off after a period of time or anything like that?