WhatsApp Foreign Users Call

I've been dealing with an ongoing problem that has been bothering me for quite some time. It appears that I've become the target of a barrage of calls from numbers with the +243 area code. These foreign phone numbers have been relentless, bombarding me with WhatsApp messages. To be honest, it's starting to give me a headache. Some of these calls appear to be scams, while others appear to ring for no apparent reason. They even have the gall to send a friendly "hello" message as if that will make things better. This situation is causing unnecessary stress, and I'm sick of it. It is past time for whoever is making these calls to stop and find something more productive to do with their time. And if these calls have a legitimate reason, they owe us an explanation.