I visited the Huntingdon branch of B and Q with a query on my made to order mixed paint. It was a few shades lighter once applied. Rhiannon looked after me, she was excellent. She offered advice and spent time adjusting the mixture and tones until it was exactly right.
10/10 for customer service. I use B and Q for many purchases and this confirms that I will indeed be returning and highly recommending. thank you Rhiannon and B and Q!