Sudden loss of 60-month internet discount and downgrade of DVR storage after plan change

In September of 2025 I requested a change from my legacy X1 Premier Triple Play plan to a less costlier one.  The agent set me up on a plan which included Ultimate TV.  From September to January I received bills that were showing the old and the new plans -- and I was being billed for both.  I went around and around with numerous Xfinity agents for months trying to resolve this and finally submitted a formal complaint to the FCC in December.  In January my billing was finally corrected.  I now see that my DVR storage had been reduced from 150 hours to 20 hours.  I was never informed that changing my TV plan would result in a reduction of DVR storage space.  My bills from October through December were never correct.  I needed to contact Xfinity each month to determine how much to pay each month until the billing (both paper and online) would be corrected.  It took almost three month to resolve the billing.  Also, up until last month's bill I was shown to be receiving a 60-month $35.00 guaranteed discount on my internet service to expire on Aug 2030.  Without warning, my current bill no longer shows this discount and I am now being billed $110.00 vs. $75.00.  This entire adventure resulting in me paying pretty much the same as my legacy account.

I need help please to restore the guaranteed $35.00 discount and possibly the 150 hours of DVR storage.  I can no longer rely on the usual service route through Xfinity.