PATHETIC RESPONSE FROM MTN

My contract expired in Oct 2021. All I wanted was to continue receiving 500mb of data, 50 free min and 50 sms. However, an agent called insisting that I would get all of that including 1GB music bundle, 20GB data. I told him that I was a senior citizen and did not need more than I was receiving. However, he insisted that I would not pay anything more, and nothing would change. On 21/11/2021 when I tried making a call, I discovered, that my existing bundle changed. No airtime no sms. Since I have emailed MTN (REF ***), no one to date has investigated, and responded. My most recent email was on 16/01/2022. I believe I am being ignored by MTN. In the interim, I have to now purchase airtime. Flabbergasted with MTN.