Times Of India — Receiving renewal notice repeatedly even after renewal

Dear sir
I have renewed Times of India & Ei Samay for a period from 15.11.20 to 14.11.21 (refer confirmation mail attached herewith)
But unfortunately till date I am receiving mail, message and telephone call very frequently reminding me for renewal. I contacted TOI office and I was told that it is server generated and can be ignored.
My question is why the server can n’t be updated? I am getting disturbed and sometimes it kills my valuable time during some urgent work, through server generated phone call.
You are requested to look into the matter and to stop receiving such notification further.
With thanks
Basumitr Sen