I would like to commend your team member Yusuf at store 0789, as he resolved a serious problem and I left the store confident to return to Halfords to purchase further products. The problem was that there was an incredibly mean spirited team member called Lisa who was instantly hostile and greeted me with a negative verbal attack. I was send by your Mile End store to collect a product which had been reserved for me in order to exchange for a substituted product which was purchased prior. With out checking, Lisa stated that there was no such product and also that it was not available for me. I then said it was ok and that I would like a refund for the product which I was going to exchange for the reserved item. Lisa then inspected my receipt, glared at me with a hostile stare, and questioned me whether I had bought it within 28 days. I politely informed her that I bought it 5 days prior to which she retorted that she would need to check with the manager to see if I should get a refund. Lisa took the receipt with her, holding it to the light to further inspect it. Lisa returned some moments later and she stated that the manager told her it was up to her whether to give me a refund for the item. Lisa then proceeded to stare at me, with a very hostile look, and opened the box. She inspected the papers, holding them up in an intimidating manner, and continued to remove the items from the box, all the while staring at me with an accusative contemptuous scowling look of hatred. I could see that other customers were waiting and I said to Lisa not to worry and that I will go to another store. It was incredibly obvious that Lisa had no intention of providing a positive and professional shopping experience to her selective customers as I did notice that Lisa's introductions to customers with white skin were as polite and interested, "Good afternoon sir", and the greetings to the customers of dark skin was disinterested and hostile "What do you want" or "Yes!", and "Next". Lisa was selective in greeting and being helpful to customers based on their appearance. Lisa also had a very strong personality and it was embarrassingly clear that she was overtly verbally bullying her colleagues. Although I felt bullied out of the store by Lisa. I then re-joined the other line and was served by Yusuf who reinstated my faith in Halfords as he was professional, polite and helpful to each customer without a change in his conduct and interaction with customers of various skin types and appearance. Instead of giving me a refund Yusuf offered me the product (that Lisa had said, was not available), which had been reserved for me by the Mile End store. I bought the product and was very pleased with his service. Yusuf should be highly commended for the sale and for changing my mind about never wanting to buy anything from Halfords ever again, based on the way I was treated by Lisa. Because Yusuf was so professional, I then purchased more products to the value of £100 and I shall continue to purchase further products solely due to Yusuf's professional conduct towards his customers. When I had bought the product from Yusuf, I politely asked Lisa for her name, to which she sarcastically responded by pulling her name tag forward towards me, accompanying it with a taunting smirk and patronisingly slowly saying her name "L-I-S-A". I strongly recommend that Lisa is re-trained or moved to the back of warehouse where she will not frighten your customers off from ever wanting to enter Halfords stores again. I believe that Lisa is a terrible representation of your company and should not be one of the first experiences that customers are welcomed with. It was embarrassing to see her openly and confidently intimidate both other customers and her colleagues at the front of store. I ask that CCTV is viewed for the Beckton store on 26/06/2021 to confirm this and see and hear an unbiased and absolute true account of this abhorrently disgusting behaviour from front of house staff. Lisa was selective in her interaction towards customers and her fellow colleagues, who clearly looked sheepish, un-confident and noticeably silent around her. It may be an idea to send in a representative from Head Office to this store to unbiasedly witness this horrific and bizarre behaviour for yourselves.