The network received 2,186 contacts from advisers, up from the monthly pre-pandemic average of 1,800.
The majority of questions were around high LTV deals and which lenders were operating in the market.
The team also received a high number of queries from brokers with self-employed clients who were keen to understand how their income would be treated by lenders.
Consideration of government support measures, such as mortgage payment holidays, in applications was also a key issue.
The product desk has supported brokers with 12,364 queries between March and September, marking a 14 per cent increase in the number of enquiries the team would usually receive in any given six-month period.
Vikki Jefferies, proposition director at Primis (pictured), said: “We recognise the importance of supporting and investing in our advisers so they can provide customers with the best possible outcomes – particularly at this time.
“This is demonstrated by today’s figures, reflecting the work of our highly skilled product desk team in assisting brokers as the Covid-19 crisis continues to impact advisers’ business.”