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How is the Family Unlimited Boost monthly cost calculated?

How it works: Renewal. When any of your Family Unlimited Boosts needs refreshing the cost will be calculated by looking at the total number of linked Family SIMs you have, working out the monthly charge and dividing by the number of SIMs. E.g.s

  • You have 4 Family SIMs. The total monthly cost would be 1 × £25 + 3 × £12.50 = £62.50 ÷ 4. Each SIM will therefore be charged £15.62 on its renewal.
  • If you were to cancel (or unlink) a SIM from the Family group (3 in total), the next charge for each SIM would be calculated as 1 × £25 + 2 × £12.50 = £50 ÷ 3 therefore £16.66 each.
  • If you add a SIM to your Family group (5 in total) the next charge would be 1 × £25 + 4 × £12.50 = £75 ÷ 5 therefore £15.00 each.