# Support
source: https://developer.mastercard.com/india-online-dispute-resolution/documentation/support/index.md

## FAQ {#faq}

IODR APIs can be used by issuers and acquirers based in the India region that are issuing Mastercard cards. Complaints can be raised for the following types:

* POS
* ATM
* Card-to-card transfer
* E-commerce
The IODR API does not use Throttling mechanism. It uses Rate limiting technique. The average API response time is one second. The average TPS per customer is less than one dispute per minute. IODR APIs can be used for the following types of cards:

* Credit Card
* Debit Card
* Prepaid Card
A complaint can be raised on behalf of the cardholder if the payment made was not successful and the deducted money is not refunded (failed transaction). IODR APIs are only specific to the India region. Yes, these APIs can be used by third-party payment app providers. For example, Google Pay or Amazon Pay. You will see only those issuers who are already onboarded on the IODR. (That is, all those issuers whose IODR contact type is set from the \[MyCompany Manager portal\] (<https://www.mastercardconnect.com/jct_mycmpmgr_content/mycmpmgr-ui/index.html)>. No, it is only to raise complaints for failed transactions. Our dispute lifecycle management tool continues to be \[Mastercom\] (<https://developer.mastercard.com/mastercom/documentation>) which has a separate API. If you don't have a Mastercard representative, send a request to \[support page\] (/documentation/support/#get-help) for further help.

## Get Help {#get-help}

### Contact us for technical support. {#contact-us-for-technical-support}