KPN can't seem to help me with the right APN settings for data on my phone

The people in the store requested the KPN settings a week ago but I still haven't received them. 

Hi and welcome to our community ​@Asmeh.

Sad to hear that you've been experiencing so much trouble with your mobile internet. Can you tell more about the settings that should have been requested in the store: what did they do? Usually you can be helped with the settings right away.

And to be able to help you with this here throught our community, can you tell me more: Is it about internet in The Netherlands via the KPN network or (also) about roaming outside of the Netherlands?

This help page on our website can help you with your APN settings, when you choose your mobile phone. I would think you can solve it that way. Can you try and let me know if it worked out that way?

Hi. 

I have now been able to find the APN settings my self so this is fixed. 

But I still cannot call or receive calls in the Netherlands and outside of the Netherlands (Sweden, UK, Norway, France etc). And I've had this issue for about three years now (since I signed up with you). The issues with calling is intermittent but lately I have been using my phone more than earlier and it seems like I cannot call or receive calls about 90% of the time. 

I also have issues with people sending me messages that I never receive. And sometimes when someone calls me I get a message saying I had a missed call but sometimes not. 

This is not an issue with the phone. I have had 4 phones from different brands and all have the same issue. It is also not a SIM card issue since I have already been sent 7 new SIM cards. When I had network issues the issue was usually fixed by turning off mobile internet and turning it back on. But for calling there seems to be no similar solution. I restart the phone and nothing changes. 

I am getting VERY tired with all these issues. And mostly in getting tired with not getting any help.