No, eSIM‑On Shop does not provide an unlimited data eSIM for Bulgaria. The plans listed for Bulgaria all have a specific data cap, such as 50GB for 180 days, 20GB for 30 days, 10GB for 30 days, 5GB for 30 days, or 3GB for 15 days. These fixed data plans give you a hard limit of data that must be used within the stated validity period; they are not pay‑as‑you‑go options.
If you need a higher data allowance than the available fixed bundles, you would need to purchase additional plans or use multiple bundles. For most travelers, a fixed data plan is more cost‑effective than an unlimited plan, especially if data usage is moderate.