Answer:
(Fatwa: 691/691=H/1430)
You should keep the promise to an extent you can afford, but there is no wrong if you marry in case of need and compulsion, it is allowable without any desirability.
(2) The mahr (dower) was paid, now you do not need to pay it again.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
