Costa Coffee review: Staff complaint

I visiting with my husband the fforestfach costa store near tesco extra the blonde woman behind till took order and other woman made coffee with dark hair we go to costa everyday, the coffee they made was terrible wasn’t warm hardly any coffee in it so my husband just come off night shift so in uniform said to blonde lady this coffee is [censored] she went straight to get manager and she complained that he had swore at her but he said coffee was [censored] we wanted another but manager came out and refunded our money told us to go else where and also said dpd is [censored] also is this the type of managers u Employ all we wanted was a coffee that was decent never had this before but I did notice the woman didn’t have cup under coffee properly when she was doing so think no coffee was going in, I’m more annoyed at blonde woman as she jumped straight off till to get manager all we wanted was a new coffee she is so rude and have no customer service skills at all plus manager also needs to be retrained we didn’t ask for him to say my husbands job was [censored] back like I said I took mine back also took one taste and was nearly sick was awful taste we spend there regularly but to have this service really is not good you can’t tell a customer the company he works for is [censored]. Shocking behaviour and not only that to embarrass me and to say go elsewhere I work in customer service and I’m shocked and disgusted. He can say all he wants but my husband said this coffee is [censored] which it was cold and no coffee in latte but she took it personally saying u can’t say that we talking coffee not costa itself and this was down to staff error u can see there was something wrong with coffee it was like water 😳 but please follow complaint as I’m not happy by this