DISGHUSTING SERVICE!!!

I went to Mr price sport fourways crossing branch today with my colleague as I'm a loyal customer for mr price sport/home.. now while I was busy fighting my gym wear I could hear my colleague having an argument with 1 of the staff, she then comes to me and ask that I give her the items and my card while I was busy dressing up now after I'm done i find her already in the till so being curious about what transpired while I was fitting i asked her what was going on,she tells me that KAGISO (staff member) came 2 her with such an attitude 2 tell her DAT HE HAS HAD A LONG DAY! (POINTING AT HIS WATCH??? Now this really made me mad I then asked him as (he was the 1 we had 2 pay 2) WHAT HAS HIM HAVING A LONG DAY GOT 2 DO WITH ME AS A PAYING CUSTOMER? I AM A CUSTOMER AND DOESN'T CARE WHAT DAY HE HAS I EXPECT GREAT SERVICE AS SOON AS I STEP INTO ANY STORE!! instead of replying he gave me such an attitude with his body language and left us at the till?? No apology nothing! Now I DEMAND A LETTER OF APOLOGY FROM MR PRICE AS A COMPANY 2; I DEMAND A FACE 2 FACE APOLOGY FROM KAGISO 2 BOTH MYSELF AND MY COLLEAGUE, I ALSO WANT 2 KNOW WHICH REMEDIES R U GOING 2 PUT IN PLACE 2 MAKE SURE NO OTHER CUSTOMERS R TREATED WITH SUCH DISRESPECT, I WANT 2 KNOW THAT AS I GO BACK TO THE STORE TO GET MY APOLOGY WHO'S GOING TO PAY 4 MY PETROL AND TIME SPENT DRIVING BACK 2 THE STORE!! SHOULD I NOT GET A SATISFACTORY RESOLUTION I AM TAKING THIS FURTHER I AM SO DISGHUSTED BY THE SERVICE!!