Question about closing a Sell call

I made a sell call last week and collected a prime of $25. Today when I look it says that market value is -$1.00 so I was thinking on buying back the contract to keep the $24 difference and sell another call. The weird thing I'm noticing is that when I try tk buy the contract back I need to pay $65. I am lost. Can someone explian me why is this happening? submitted by /u/Small-Professor-2551 [link] [comments]