****ty online service by Hi Fi

I bought a TV 55 inches UHD on Saturday the 27th of Jan 18. The system allowed me to process everything online and also received an email that the order has been signed, sealed - and will be ready for collection ASAP. On Sunday boom another email " regrettably fresh out what you have ordered". When did they realise that they are out of order. Other companies are doing their best for each and every item they sell to check there is enough to sell. I really do not understand HiFi yet I always support their business, my first time buying online with them and this is the service that I get. I am speechless!!!!