Unfortunately the people who make me feel unsafe abroad are from my own country

I live in Europe since a couple of years and I feel extremely safe here, or at least I used to. Sadly the only times I have felt not very safe here is always due to someone from my own country.

Today I ordered something online and the delivery guy was Indian, and he kept asking me all kinds of personal questions, which I vaguely replied with lies to not give him any info about me. Then he leaves and calls me back after 5 minutes, saying he called by mistake, but then he keeps pushing me to give him my number even though I was clearly uncomfortable. So I gave him my boyfriend's number, since my boyfriend is a local and would scare him better into not contacting me again. Then he tells me he didn't understand the number and is waiting outside my building for me so can I come out so that he can scan my whatsapp profile to get my number. At this point I clearly told him I am not comfortable giving my number and he says okay no problem.

After 10 minutes he messages my boyfriend thinking it's me (mind you this was the number that he said he didn't "understand").

I reported it obviously but this is not the first time it has happened. Several times delivery guys or taxi drivers have tried to find my social media after I didn't give them my number, and it was always an Indian guy.

How tf do they not understand how unprofessional and creepy this is and how it damages India's reputation abroad? I feel uncomfortable knowing he knows where I live.

Edit- Locals and other foreigners have asked for my contact number or social media too, but once I say no they back down immediately and never try to contact me again in any way. I seriously don't understand the persuasion after the girl is telling you to your face that she is not comfortable.