Kitchen appliances?

The fridge part of my Frigidaire fridge/freezer has stopped working in the last 2 weeks (not exactly sure when as we have been on holiday for 2 weeks!!) I contacted a company to ask about regassing it and they have said they do not regas as it is not economically viable....They sell appliances too...are they just saying this because they want to sell me a new appliance or is it really not economically viable. I have looked on a well known retailers website and to replace F/F would cost about £149 if I went for bog standard cheapest one they do. Thanks in advance
Rachel