WhatsApp, Meta, FB, Instagram and others not receiving OTP or SMS in Ufone

Recently. My WhatsApp was logged out. I think its due to the PHP vulnerability. Now i am trying to login back. I cant receive any sms through ufone numbers. Its not one but none of the numbers. While i tried other carrier number such as zong, telenor and jazz. I think they seem to be working. I am not sure why Ufone has blocked meta OTPs. This is really not fair. I lost my all contacts. all data on that whatsapp number. I am here to write and let others also know