So how much was the take away ? the equivalent of your monthly allowance?
Mo, keep going out, keep ignoring him, Do not rise to the bate, do not show interest , Do NOTHING for him. He must not use your car, (remove the keys) he must realise that while he is cooking & eating his steak you & the children have rice & tuna.
Hopefully the children won't be too perplexed, but then again....
the fucking Bastard.
Before he goes back he must refund the £200. He can see the new uniform with his own eyes. the insinuation is that it cost £150 & you are asking for £200 so basically stealing from him.
Give him the sodding receipt, & say "Your insinuating that I am stealing from you is & always has been unfounded. Uniform costs are not under my control or yours, just give me the money so I can REFUND the person I was obliged to beg from. Arsehole "