Tenant gave me a bill for small repair

[Jimmy S.]

Had a small roof leak and we discussed him fixing the work and agreed on a price just to patch the leak. It clearly states in the lease and we had a verbal agreement I would make an acceptation this time.

 Well he sent me the bill and receipts and also stated that the bathroom faucet broke and drain line need to be replaced and billed me a extra $100 for parts and labor to repair that which we NEVER discussed or if there was even an issue. Worked fine when they moved in.  Sounds like he though we was doing me a favor by quick fixing it which I understand but would have been nice if we would of called me first and let me know.

I looked at the receipts and looks like about $50 for tools to do the job and $30 for parts and $20 for labor.  He charged me to buy all the tools also, pliers, tube cutter, plumbers tape, ect...

How would you handle this? Tell him this is a one time exception and future repairs need to be told about BEFORE making repairs or make him pay for it? I did not talk to them yet since I just got a letter with the rent about 4 days ago. Also I did not go over and verify that he did in fact fix it or replace the faucet and drain.