Coca Cola Not Refreshing Anymore

As a drinker and supporter of your brand since childhood i am rather concerned at the quality of your product recently. In particular the taste and also the how quick it goes flat. I have encountered these issues not just a one store or chain store but multiple stores. In some cases it was so bad that i thought i was drinking flavored water no gas nothing...<br> <br> This is rather disturbing as i would expect that being a company of your size with a global foot print what is happening to the quality control, or shall i say is there quality control in place during production. I have switched for now over to your competitor Pepsi it might not taste the same but I am assured that it does not go flat after a day in the fridge.<br> <br> Disgruntled Supporter