How do i contact fluid customer service? You can send us a message online by logging into your online account manager . If you are not registered for our online services it’s easy to sign up . Alternatively, if you are not a Fluid customer but wish to contact us, you can do so here .How do i contact fluidmaster in mexico? Ave. La Condesa 1071-B Col. Nexxus Guadalupe N.L México Código Postal 67114 +1 949-728 2446, [email protected] If you are in the U.K. and need help, please call:How do i activate my fluid card? To activate your Fluid card call us on: This is an automated phone service and does not go through to a customer service representative. Calls to 0333 414 1090 and 0333 414 1098 will be charged at a standard national rate.Are fluidmaster products reliable? Thank you Fluidmaster ! "I have never ever gone wrong by purchasing Fluidmaster. They are reliable and they stand behind their product." "I have full faith in Fluidmaster products and most important their guarantee, which is real." "Fluidmaster products are exceptionally reliable and reasonably priced.