It's a cold call from My Wealth Services. It's an offshore call centre (sounds Filipino) and they struggle to use phones.
Most of the calls from this number have nobody on the other end and they hang up after 5 seconds or so. I called them back and usually they hang up after a second of call centre background noise - I finally got an answer saying "thank you for calling My Wealth Services, how can I help you today?"
I've explicitly requested that this company stop calling me a couple of times in the past couple of months.
Just add the number to your block list.