Best UK Casinos Not On GamStop ️ Top-Rated Slots 2026 Most non Gamstop slot sites offer their own account suspension or self-exclusion tools. Visa and Mastercard debit cards are accepted at most non Gamstop sites and are the most straightforward option for most UK players. Microgaming — One of the oldest names in online gambling. Pragmatic Play — Currently the most prolific and arguably the most...