So frustrated

So basically i spoke to 2 different xfinity customer service representative's neither spoke very  well english. The first representative gave me 888-739-1379 to call and told me this number can help me better and look into my xfinity chat assistance conversation log. I was givin the option for a installment plan Sunday August 9th and i accepted the terms and agreement and when i submitted it said please try again later they were experiencing problems at this time but with 5 mins my internet was back on...so i thought it must of went threw, monday morning aug 10th my services was disconnected again so i went in to see about the installment plan again..same thing happened told me sorry try again later and boom internet back on...well today aug 11th 10am off again this it told me i have no option but to pay my past due...so trying to get an understanding i called and was basically called a liar not to mention i was already supposed to be on a installment plan back in may i kinda had the samw issue but the lady i spoke to was very helpful looked into my chats and i even have them downloaded so i could show proof incase they couldnt see it but the people today was not either trying to help me or didnt understand nor care to help me figure this issue and what happen to my installment plan from may cause my past few bills are my normal bill not a installmentplan?? I know you have to keep a log when i called and what the outcome was?? But they just kept saying must pay this right now and when i tried to explain same response either you gotta pay NOW or dead silence..so at this point im not sure if im going to continue with xfinity i might just keep it off and look for another provider...this isnt the first time ive been treated this way and im as nice and understanding as they come and dont deserve to be spoke and treated like child and brushed off...all i was asking was for help and maybe alittle understanding of what happened