Closing claim because of review stress

Hi

I was separated in 2024 and by end of 2025 I started my uc claim along with my work so I was receiving a small amount of 200 pounds now recently they have asked me for bank statements it's making me so stressed because I was saving all this year to buy a house and get married again I wasn't aware of savings declarations on uc now I have requested to close claim as I am planning to go work full time and do some studies as well I have told them on call that my circumstances are changed and I explained to them that I no longer wishing to take that money as it will result in dwp overpayments now I am waiting for the claim to be closed and it's delayed for no reason any help regarding this ??? My review is due by next week and I am not willing to discuss my personal with them.help any advise.