Ccavenue — regarding refund

I had provided all the details to them. Still they are not providing me refund. They are not receiving my calls. And they refused my refund. Ccavenue fraud company. My no. is [protected]. I have fill Rural Urban Sansthan form and paid fees through CCAvenue. But when the exam got cancelled. I mailed to CCavnue to refund my fees. They asked me for details. And i had gave all the details regarding online payment. Still they are not writing me mail. They completely refused to refund me. I am sending my form detail. And hope to get my refund