Hi
I can empathise with you as i am going through a similar situation. After snooping around the internet, I understand that it can take as long as 3 months to get your results once they are withheld. So i suggest if you can, wait till 6th April, then take up another test date if you still dont get your results, as once you cross that threshold of 3 months then you really can’t just keep waiting. Also it depends on the purpose for which your are appearing, like are you facing a deadline, for education instance you will have a fixed deadline for admissions that you need to meet(if thats the case, take the next available slot) or in case its for general immigration, then you have slightly more time as you dont have a deadline to meet.