This "Lindersoft" banner just tells you that your certificate request makes use of the Lindersoft partner discount (e.g. $200 instead of $500 for a 3yr certificate).

If you go directly to the trust-provider.com website then it displays the standard Sectigo logo (no discount). It's always the same order page for all partners, resellers, etc. worldwide.

https://secure.trust-provider.com

Friedrich