I have purchased Hebalife's Lemon tea Concentrate for over ** years and enjoyed the tas...

I have purchased Hebalife's Lemon tea Concentrate for over ** years and enjoyed the taste. The last time I purchased it I purchased enough for about * years. So it had been over * years since I last purchased a new container of the tea. I purchased one a couple of months ago directly from an Heralife representative, and it does not taste anything like what I had purchased for so many years. Even the color of the dry material was not the same. It does not taste like tea, but rather very expensive sweet chemicals with an after taste. Was there a change in the formulation or did you receive any notification of product issues with lot* D*****W**?**Thank you-