Telr Payment integration in iOS - ios

Question

I want to integrate Telr Payment integration in my App, I have gone through the DOC part and it seems like I have to request for enabling mobile API. If anyone has a demo of Telr integration in iOS, please feel free to share it. I am unable to find any demo regarding this Telr payment integration.
I am giving you my demo but Every time I am getting error and it says type -"E" Code-01. If any one here has any idea please help me out. Actually I am making a testing demo and it may be possible that I am passing some wrong params but in actual I don't know which params are wrong.
NSString *paramString = [NSString stringWithFormat:
#"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<mobile:Body>\n"
"<store>%#</store>"
"<key>%#</key>"
"<device:Body>\n"
"<type>%#</type>"
"<id>%#</id>"
"<agent>%#</agent>"
"<accept>%#</<accept>"
"</device:Body>\n"
"<app:Body>\n"
"<name>%#</name>"
"<version>%#</version>"
"<user>%#</user>"
"<id>%#</<id>"
"</app:Body>\n"
"<tran:Body>\n"
"<test>%#</test>"
"<type>%#</type>"
"<class>%#</class>"
"<cartid>%#</<cartid>"
"<description>%#</description>"
"<currency>%#</currency>"
"<amount>%#</amount>"
"<ref>%#</<ref>"
"</tran:Body>\n"
"</mobile:Body>\n"
,#"123",#"XG32K#rBLn~BSm82",#"Simulator",#"xyzabc",#"",#"",#"Telr-Payment-Demo",#"1.0",#"Syscraft.Telr-Payment-Demo",#"",#"Test mode",#"PAYPAGE",#"",#"123",#"hello",#"AED",#"9.50",#""];
NSString *requestURL=#"https://secure.innovatepayments.com/gateway/mobile.xml";
NSURL *url=[NSURL URLWithString:requestURL];
NSData *data=[paramString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableURLRequest *mRequest = [[NSMutableURLRequest alloc] init];
[mRequest setURL:url];
[mRequest setHTTPMethod:#"POST"];
[mRequest setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[data length]] forHTTPHeaderField:#"Content-Length"];
[mRequest setValue:#"application/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[mRequest setHTTPBody:data];
NSURLResponse *response = nil;
NSError *error = nil;
NSData *responseData1 = [NSURLConnection sendSynchronousRequest:mRequest returningResponse:&response error:&error];
if (error!=nil)
{
NSLog(#"Webservice Error==%#",error);
}
else
{
NSString *responseDic =[NSJSONSerialization JSONObjectWithData:responseData1 options:NSUTF8StringEncoding error:&error];
if (error!=nil)
{
NSLog(#"Webservice Error==%#",error);
}
else
{
NSLog(#"responseDic ======\n %#",responseDic);
}
}