I have been getting calls from this number quite often it is bloody annoying

I called back number 0488 840 866 rang once then goes to busy tone.

Caller: 0488 840 866

They are called “Learning online”
If you signed up to a course well that’s who they are as I returned their call to find out but it goes straight to msg bank

Caller: 0488 840 866

They are “learning online” if you enrolled in a course well that’s who they are.

they called me not to long ago on 0488 840 866

I called back number 0488 840 866 reached voice mail but did not say for what company.

This could be a scam. I received call from this number in the past. No one seems to be on the other end of the line.