Guides on high risk merchant accounts, the MATCH list, chargeback thresholds, underwriting and processor terminations.https://www.opensignpayments.com/en-ushttps://www.opensignpayments.com/blog/questions-to-ask-a-high-risk-processor/https://www.opensignpayments.com/blog/questions-to-ask-a-high-risk-processor/The specific questions to ask a high risk merchant processor before signing, and which answers, or non-answers, to those questions should worry you the most.Thu, 20 Aug 2026 02:00:00 GMThigh riskunderwritingreservesfeesmerchant accounthttps://www.opensignpayments.com/blog/how-to-lower-your-chargeback-ratio/https://www.opensignpayments.com/blog/how-to-lower-your-chargeback-ratio/Practical levers that lower a chargeback ratio: descriptor clarity, refund policy, delivery evidence, response speed, dispute alerts, and the ratio math.Wed, 19 Aug 2026 14:00:00 GMTchargebackshigh riskmatch listmerchant accounthttps://www.opensignpayments.com/blog/why-stripe-and-square-close-accounts/https://www.opensignpayments.com/blog/why-stripe-and-square-close-accounts/The risk model behind sudden Stripe and Square account closures, what actually triggers a review, and what each company's own published policies say.Wed, 19 Aug 2026 02:00:00 GMTterminationsaggregatorhigh riskunderwritinghttps://www.opensignpayments.com/blog/aggregators-vs-dedicated-merchant-accounts/https://www.opensignpayments.com/blog/aggregators-vs-dedicated-merchant-accounts/What changes day to day between an aggregator like Stripe or Square and a dedicated merchant account, beyond pricing, and when each setup is the right call.Tue, 18 Aug 2026 14:00:00 GMTaggregatormerchant accounthigh riskpayment gatewayhttps://www.opensignpayments.com/blog/rolling-reserves-explained/https://www.opensignpayments.com/blog/rolling-reserves-explained/How rolling, upfront and capped merchant account reserves work mechanically, why high risk accounts carry them, and the questions worth asking before you sign.Tue, 18 Aug 2026 02:00:00 GMTreserveshigh riskfeesmerchant accounthttps://www.opensignpayments.com/blog/what-underwriting-actually-looks-at/https://www.opensignpayments.com/blog/what-underwriting-actually-looks-at/The file a high risk underwriter reads, in the order they read it, and exactly which documents to have ready before you apply for a merchant account.Mon, 17 Aug 2026 14:00:00 GMTunderwritinghigh riskmerchant accountchargebackshttps://www.opensignpayments.com/blog/chargeback-thresholds-explained/https://www.opensignpayments.com/blog/chargeback-thresholds-explained/The exact Mastercard MATCH and Visa VMSS chargeback and fraud thresholds, published by the card networks themselves, explained in plain English with sources.Sun, 16 Aug 2026 19:00:00 GMTchargebacksmatch listunderwritinghigh riskhttps://www.opensignpayments.com/blog/what-gets-a-merchant-account-terminated/https://www.opensignpayments.com/blog/what-gets-a-merchant-account-terminated/The real, ranked reasons processors terminate merchant accounts, from chargeback ratios to reputational risk, and which ones a business can prevent.Sun, 16 Aug 2026 02:00:00 GMTterminationschargebacksunderwritingmerchant account