Please provide your account number using the parameter &account;=
Example :

https://eu.ntrsupport.com/nv/WebIntegration/Connectwise/contactform.aspx?account=1
Parameters List
NameDescriptionTypeExample
accountAccount Id Integer 526
langClient languagestring en
bannerBanner activationBoolean0, 1 or 2
imgCustom bannerBooleanhttp://domain.com/banner.gif
buttonButton nameStringconnect
catCategorie NameStringsupport
cobCategorie is uniqueBoolean0 or 1
operForce operatorStringoperator1
skinSkin NameStringMySkin
urlofflineUrl to offline page Stringhttp://domain.com/offline.htm
urlbusyUrl to busy page Stringhttp://domain.com/busy.htm
surprePre-survey nameStringMyPreSurvey
surPost-survey nameStringMyPostSurvey
bgcolorBackgroud colourStringFFFFFF
txtcolorText colour for surveyString000000