By Levi Winchester Amazon Prime Video users will have to pay £2.99 a month to avoid being shown adverts from next week. The streaming service is introducing ads from February 5. Amazon Prime Video costs £5.99 a month, which means your bill would rise to £8.98 – the equivalent of paying 50% more – if you want to remove adverts. Full Amazon Prime members currently pay £8.99 a month, or £95 for the year upfront. This means you would be paying £11.98 a month, or £130.88 for an annual membership, to get rid of adverts. It isn’t clear when the adverts will be shown, whether it will be during the con…