VoidMob does not provide a plan that offers truly unlimited high‑speed data for the Czech Republic. Plans titled “Europe Premium Unlimited – 5 days”, “Europe Premium Unlimited – 10 days” and “Europe Premium Unlimited – 15 days” each have a fixed data cap of 30GB, 60GB and 90GB respectively; once the cap is reached, speed is reduced to 2000 kbps.
Alternatives are fixed‑data plans that give larger allowances. For example, the “EU 120 GB + Calls/SMS – 30 days” plan provides 120 GB of data valid for 30 days, and the “Half Global 120 GB – 365 days” plan offers 120 GB for a full year. These fixed‑data options can be more economical, particularly for users who consume data heavily, while still giving clear limits and a predictable validity period.