0488 839 634 rings and rings like it's a family member. I rung it back and it hangs up

Text "missed your call earlier?"

And received this "Thanks for the message. Configure your number's SMS URL to change this message.Reply HELP for help.Reply STOP to unsubscribe.Msg&Data rates may apply."

Replied "stop"

Received this "You have successfully been unsubscribed. You will not receive any more messages from this number. Reply START to resubscribe."

Followed by "Thanks for the message. Configure your number's SMS URL to change this message.Reply HELP for help.Reply STOP to unsubscribe.Msg&Data rates may apply."

Replied "stop" again

Received this again "You have successfully been unsubscribed. You will not receive any more messages from this number. Reply START to resubscribe."

And again n again a total of 8 times before it stopped. Tried call back first and the number rang but no answer or message just cut off after awhile. I had missed a call in th early morning. Nothing I had done beforehand that would possibly be followed up by a call or telemarketing like sometimes happens. Random and out of the blue. However it didnt text me until i text them so perhaps it was my text that subscribed me.

I called back number 0488 839 634 rang once then gets disconnected automatically.