Terrible service

Not for the first time am I having a problem with Travelstart. They have no problem updating you with marketing but when it comes to refunds ... NO ANSWERS. From cancelled flights with the likes of Mango that no longer exist to a more than two year delay to get a refund for a flight on Comair connecting with Egyptair to Italy. The first answer was that refunds can only commence when flights resume as if fares are to be used to improve cashflow of companies! I have written many mails to get the occasional response .... "we are looking into the matter"