i called back number (07) 3082 0360 spoke to a woman who said company name is Compare The Market.

never leave a message but had several missed calls whilst at work

Compare the Market I assume. I looked at Health Insurance and Care Insurance. Literally 15mins later I got 3 calls with no voicemail left. I spoke to someone on their online chat thing so why do I need a call?! Just annoying.

looked up some health insurance quotes - within 5 minutes the calls began - 3 calls within the first hour. They wanted to assist me in selecting insurance but calls like this are a nuisance and involve high pressure selling. Requested I be removed from the call list - this has not worked

some insurance crap... they said they seen that I have been looking on their website and wanted to see what kind of insurance interests me... funny thing is... I haven't been on any insurance websites. Block this number!

I have had about 5 calls a day for the last week from this number.
I have made an enquiry online with compare the market and Iselect so I assume it is them.
After already answering one mobile call yesterday from Iselect I advised them to call me after business hours which they didn't.
However this number insists on calling me and not leaving a voicemail.

Called multiple times during business hours but never left a voicemail even though my voicemail is clear and states who I am in a professional way.