Why does my Nekoro order total keep changing during payment?

[Nexgenn3]

Am trying to purchase a product off my store and this keep happening.

(Your payment couldn’t be processed because your order total has changed. Check your order total and try again).

[Erin]

Hi, @Nexgenn3. 

There are a few reasons why this error may happen, but we would need to look into your account to troubleshoot this further. Since we can't see your account details here over the Shopify Community, please reach out to our support team through the Help Center here. If you speak with us through that page we can review this with you in more detail.

I also wanted to share this guide on placing test orders to help you do this going forward. We recommend testing orders in test mode since testing your checkout with real orders/payments is against the policies of some payment gateways. You may also encounter fees from the payment processor you use if you place a real order. If you've reviewed your payment gateway's policies and are ok with possibly being charged fees, you can still test your checkout with real orders by placing the order as a customer would and then immediately cancelling and refunding the order.

Please let me know if you have any questions!