My plan got downgraded today after annual renewal. Is there a fix?

I ported two numbers with the buy one (annual premium on dark star) and get one free (annual starter on DS) back to June 2nd, 2025. Then I upgraded the free annual starter line to annual premium from the second billing cycle and paid $110.

After 360 days, both my lines got renewed today, but the free line is downgraded back to annual starter instead of being renewed on annual premium. Only $270 were charged for this line two days ago, instead of charging $390. The primary line was renewed with annual premium without any problem.

I actually talked with two CSR long before the renewal date of today, and they assured me that the free line would be automatically renewed as annual premium. This morning I found that’s not the case and talked with the third CSR. This CSR told me the renewal date is actually June 27th, 2026, and it can only be upgraded after this date. But my card already got charged and the plan got downgraded.

Thanks the third CSR. At least he told me why the line didn’t get renewed as it is supposed to. The first two CSR didn’t know what they talked about. I assume they don’t even check the line properly because my account clearly showed both lines will be renewed on May 28th, 2028. If there a second renewal date for the secondary line, they should tell me the info.

Anyway, is there a fix? I prefer to put the secondary line back to annual premium in the very first billing cycle, which has started today.