Starbucks, Basel

There was 2 cashier were open, then I queue up by Cashier near the cakes etalage.. then i saw the other cashier is free, of course i move at the other side but sadly this cashier is busy to make a beverage...that's ok and I do understand..im waiting n waiting it's oke. But what I dont like there is no signal from the other cashier ( atleast she could ask me what am waiting for...but she dont.)..she keep on servicing the other costumer 4-5 linie..til her saw im bit grumpy for wating..she ask the costumer 'who's the next'..oh you should queue up in the next linie ...then i just put my unhappy face ( of course who wants to queue up again in about 5-6 customers!). I just upset and walk out...I came again it's because 4 my friends are ready with their drinks. Without appologize or say excusme she just me to do another line Up..Gosh!! im Asian ....and i work also in hospitality. maybe I do also wrong but this ... she must have an allert to the customer...I think she have problem with asian costumer or I dont know i just feel piss with her act who keep on servicing the local costumer. it was happened Today in the afternoon ( 15.15pm or so) My appoloqize too if I make a mistake. sincerly yours Herlina.