Yes. If you come to Doorspace for the first time on 5 March, your 30-day period starts on 5 March.

If you come 8 times between 5 March and 3 April, you pay 8 × €10 = €80 excluding VAT.

If you come 12 times between 5 March and 3 April, you pay the capped price of €100 excluding VAT, and you can still come for the remaining days of that 30-day period without extra daily access costs.