Installment Payment Plan

I contacted Xfinity last week due to services being suspended. Services were suspended due to the $190 past due balance. The representative stated that the $190 should have been part of my installment payment and services should not have been suspended. There was a scheduled payment on May 9 to pay that amount but was cancelled by the agent. Agent stated I didn’t owe it as it was part of my installment and to only worry about May’s Bill due towards end of May. She stated bill would be adjusted to the installment payment and my services were reconnected. She stated my bill would be about $370-$390. Here we are again with my service suspended for that same $190 she stated I didn’t owe. Please explain as I had the payment scheduled since last week but it was cancelled by the agent because she claimed I didn’t owe. I’m frustrated and at my wits end with Xfinity. I’m trying to do right and pay my bill but get tired of having to constantly fight to get to a bill agent and be told different information and having my services suspended for wrong information!