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Hello René,
I remember, Basic Membership not worked so I gave you Supporter Membership for 3 months or so for free. I never gave anyone Lifetime Membership.
To Vijedra, please send me proof of payment, on Chat so I can verify, If you are right I will definitelly fix your membership. Please note, some users clicked on Active membership button on membership page, this caused, that active membership has been removed. This bug was fixed around a month ago.