unable to withdraw profit

at first I invested a 5000 php for membership fee after 2 days they ask for a verification account fee of 50,000 php but I only send 30,000php so that I can withdraw my profit now here comes the withdrawal process at first I selected the Crypto withdrawal process but sad to say it always pending and they say that is under maintenance for 2mos and they say to proceed to a bank withdrawal so when I tried to withdraw the amount it ask for a COT code ..then the COT code cost 15,000 php.. so o did not pay the cot code...I think it is scam because that Samantha Heather is now not reachable in facebook and in telegram all our conversation is deleted includinf the said manager.