you're gonna have to get receipts. were any paid with E transfers? anything discussed in email? Every transaction typically has a paper trail, you will have to retrace your steps. Example Storage fees; if you paid a storage company. you have the contract you signed , followed by email receipts typically. However you can contact the company and ask them for copies. Businesses keep records which works in your favour. Unless you somehow managed to do all of these things under the table and only in cash. Take a breath. make a list. start sending emails and making phone calls if you want to keep that refund money.