Uniconnect — Very bad quality sim cards

Uniconnect sim cards are not at all a good option to use for international travels. My husband and I were traveling and we faced so many issues with networks in London. They mite offer prepaid sim cards at a cheaper prices, but their services are also as low as their pricing. We landed up buying a local sim card there since this Uniconnect sim card didn’t work at all. Total money wasted.