King Price - Be available for your customers

Firstly, a call was placed to their contact number, on choosing the correct option, contact was made however the gentleman who answered advised the department was incorrect. He told me to call back, (don't people understand that each call specifically on a mobile is costly. I then asked that he transfer the call, 10 minutes later and still no response. Following the call, a contact form was completed for a call back yesterday on their website as I need to amend my address details. Shortly thereafter a sms is sent to me advising they are not able to reach me. Absolute nonsense - they didn't even try; a contact form was also sent to another company and after 5 minutes a call back was received. Should there be a claim they will refute it advising that my details are incorrect even though a direct whatsapp was also sent and it is not for lack of trying to get hold of them. Also tried on the mobile app, no joy. Why is it that one has to resort to these measures prior to a company taking action.