I also had a problem with the bounty manager, I prove that he was wrong and for that he deleted me from the bounty telegram group and said if I contact him again, he will completely delete me from the bounty campaign. This is not professional behavior, so I know how you feel :/.
What problem did you have with him? I've never seen him remove anyone from a telergam, except that you claim a stake before he completes the calculation. He is very enthusiastic about his work and always updates his spreadsheets very quickly and accurately