How should I proceed after receiving a summon regarding crypto deposits?

I received a summon under Section 70. The Superintendent at DGGI asked about crypto deposits in my Wazirx account, accusing me of receiving foreign money. The officers threatened to put me in jail and even asked me to submit my unlocked phone, which I refused. I explained that I was doing arbitrage trading and showed withdrawal history to verify that the crypto deposits were from my other exchange accounts, like Zebpay and Binance. Additionally, I mentioned that GST is not applicable to crypto trading as the government is still deciding whether to classify crypto as goods or services. I need advice on how to proceed.