STBXH has been paying £50 per month for our DD, he should be paying £200, but I didn't press him for more as he is living in our jointly mortgaged house and even with a lodger covering my half of the mortgage, I didn't want to risk him not paying the mortgage. However has since discovered that he has moved OW into our house. So as he is now receiving money off her for rent as too, do you think it would be fair to ask him to increase his maintenance for our daughter? There appears to be more than enough money coming in for him to go on 3 holidays in 6 weeks, and lead a very indulgent lifestyle. WWYD?
Thanks in advance