No. Giga.Tel’s plans for Qatar give a hard limit of 50GB of high‑speed data.
The available options are fixed‑data plans such as Global 67 Destinations – 50 GB – 3 days, the 5‑days, 7‑days and 10‑days variants, and the Asia‑Africa 10 – 50 GB – 3 days plan. Each of these bundles provides 50 GB of data and is valid for 3 to 10 days after activation.
Because the data allowance is capped, a fixed‑data plan may be more economical for most travelers unless they require a very high volume of data beyond the 50 GB limit.