Anyone know this number. I keep receiving 03 numbers

Caller: Pests

Blocked, the usual irritating Electricity mob. This is the 43rd 03 number from the same mob I have blocked

I've had the same number calling me and other ones from "Simply Energy" hard to block them all...

Usual story, number not known to us, & no message left so presume a scammer, oh yeah, near enough to tea time too, pests, and to an unlisted number to boot!

Multiple calls each day electricity peddlers persistent annoying people blocked