Best is to contact the Refinitiv office in your country; you can find our offices here.
Alternatively you can also use this online form.
PS: DSS is not appropriate for your real-time data; for that I suggest you look at the Eikon or Elektron APIs.
what are you after ? Real-time streaming data, end of day values, historical data (ticks, bars, or just end of day) ?
This forum is for technical discussions. Considering the nature of your query I suggest you discuss your use cases and needs with your local Refinitiv account manager, he will be in the best position to help you make the right choices.
Note: most of our APIs require a license.