Iv been refused by ftt for leave to remin with right to appeal . I have appeal how long will take to except or not my appeal and then upper tribunal process . Pls share your experience

Hi ppl. Pls any one share experience of appeal against first tier tribunal to upper tribunal how long it takes I haven’t reserve permission yet to appeal but mistake clearly was made as dgudge misunderstand and didn’t follow evidences . So perdition tonappeal and then upper tribunal review case hoe ...