Milestone Credit Cards complaint: Recent Payments Failed to Post

I am a NEW CUSTOMER trying to be a GREAT CUSTOMER! I am facing eye surgery next week so I posted THREE EARLY PAYMENTS dated September 13th-$23.00; September 16th-$28.00 and September 27th-$28.00 (see photo). When I saw that I had a negative available credit of-$22.00; I was informed by your billing department that my available credit won’t be posted UNTIL September 30th or later because I made my payments VIA your app; NOT at a MoneyGram location! I am HOMEBOUND and I pay ALL of my bills from home! WHY should be penalized by my payments being held up because I pay from home! This is my SECOND COMPLAINT! My FIRST one was because with my eyes being heavily dilated; I mistakenly paid TWO PAYMENTS of $48 and was told by your billing department that I had to have my Wells Fargo bank rescind the 2nd payment which they gladly honored because GENESIS MasterCard DO NOT ISSUE REFUNDS! I am a 72 year old senior on a fixed income trying to be the BEST CUSTOMER with you all! Is this how you treat your paying customers?