My ex fiancee said he was going to send me a letter regarding reimbursement...?

I sent my fiancee an itemized list of items that were bought and paid for our wedding that he cancelled. Its been a week and he hasnt mailed anything. How much longer should I give him before I call him and ask him about it?? We havent had an in depth conversation about the breakup and I know that Im no longer waiting for anything good to happen, otherwise he wouldnt have come around already. Its been almost one month he cancelled the wedding and one week that I stop sending text. Yes I miss him tremendously but obviously he wasnt ready for marriage. He also no longer wants to see me, for unknown reasons. Do I wait, send him a text or show up at his house demanding answers (geez, I was about to marry this guy). He wants us to go different routes but what do I do about the money that was invested??