Correspondence is shocking! Not at all happy with ...

Correspondence is shocking! Not at all happy with them at the moment. 3 emails sent in the last few weeks, asking for them to be acknowledged, and nothing. After sending an email approx 1 month ago, asking for an update, I received a call. Unfortunately I missed this due to being at work. Called back as soon as I could and was then cut off by reception. Called back yet again, passed from reception to another department, back to reception who were going to transfer me back to the same department. After a lot of being left on hold, I then spoke to someone who said they would update my notes. I then received 2 emails claiming that they had been trying to contact me. So I took a screen shot of my phone log, showing that I had been on the telephone to them for a total of approximately 30 mins, and still no response.