Hometeam properties need advice

I have subleased my apartment since August, I have made rent payments with my Chase bank account saved on to the Hometeam website. So I don’t renter my account info every time.

December 31st I try to make a rent payment but there website is down. January 1st I make a rent payment. A couple days later I’m given an email saying my rent has been returned to me, there is now a 50 dollar return charge fee, and an 80 dollar late fee. I cannot call anyone because their rent and billing department only does communication through email. They tell me the reason is insufficient funds in my bank account. They waive the 80 dollar late fee. I still pay the 50 dollar return charge and show them a screen of my bank account proving that I did have sufficient funds in my account at the time of payment. However they say there is nothing they can do.

Now I come home to another email saying my rent has been returned a second time. An additional 50 dollar charge is put on and another late fee. So I’m being charged 200 dollars more than my original rent. I call my bank and they confirm with me - I did have sufficient funds in my account at the time I tried to make payment, 2 they have no history of anyone trying to take money from my account from Hometeam for this month- the rent I paid was never collected, 3 - my account that is linked to Hometeam has all of the correct account numbers, 4 - other services linked to my bank account were able to successfully withdraw money from my account proving that there should be no reason they cannot accept my payment, 5 - my account is not on hold, no restrictions and is in good standing. I have used the same bank account since I have been living here in August. Chase told me they would be more than happy to do a three way call to speak to my landlord because the issue had to be on their end - but again, they don’t communicate except for via email. Chase did tell me they may be able to write me a letter as proof for everything but cannot email.

Has this happened to anyone? I’ve never had so many issues and I’m so clueless as to what to do and incredibly frustrated.