Did I miss a a phone call from Tesco. Watch
You could try calling the number listed for the store you applied to, even if it's different to the one you missed a call from. They might not know, but there's a chance they'll know who to ask.
The number is different to the Tesco number so could it potentially be the HR managers work/phone number.
In most cases yes. The google results will either point directly to the website of the place that called you (if they publish it).......or it will show listings from some variety of 'who called me?' services, where other people have asked/answered/reported what the number is. It's generally worth a shot if a mystery number is calling you.
Possible, but it would be a bit odd for an HR manager to just let their phone ring out with no voicemail.