Hi! Sorry for the late reply, been to busy these days preparing for my two nieces visiting end September. They are two sisters, one is a registered nurse in London and the other from Münich.
About the phone issue, my provider said that such calls can't t be blocked because those are automated numbers that keeps generating new ones. The solution is to change my number which I don't want because many of my contacts have this number.
I'll probably keep it until I've informed my friends for a new number. Talk to you again soon...Ciao, take care🌸