Product $31.50 + Sales Tax $1.08 + Shipping $5.20 - Gift Certificate $25.00 = $12.78. However, it charged the customer $24.48. Here is the Linkpoint output (with the wrong tax and wrong total).

Only the Ekobrew at $18 is taxable at 6%.

Any thoughts?

Credit Card Server Time: Tue Dec 6 14:40:04 2011 This Server Time: 2011-12-06 14:40:04 $24.48 06/28/2011
APPROVED
XXXXXXXXXXXX
Expires: 06/13
5628-JvFaSZ
0940040279
YYYM
1323200403 result=LIVE; oid=5628-JvFaSZ; ip=XX.112.108.35; ponumber=; tax=12.78; shipping=5.2; chargetotal=24.48; cardnumber=XXXXXXXXXXXX9633; cardexpmonth=06; cardexpyear=13; cvmindicator=provided; cvmvalue=000; userid=2121; customerid=2121; name=XXX; company=; address1=XXXX; address2=; city=XXX; state=Michigan; country=US; phone=XXX; email=XXXX######################; addrnum=XXX; zip=XXX; sname=XXX; saddress1=XXX; saddress2=; scity=XXX; sstate=Michigan; szip=XXX; scountry=US; comments=Website Order; items=Array ( [1] => Array ( [id] => 44:d576b81fab949943c69c928767d72bd2 [description] => Lakers Blend [quantity] => 1 [price] => 6.75 [options0] => Array ( [name] => Weight/Caffeine [value] => 1/2 lb. REGULAR ) [options1] => Array ( [name] => Grind [value] => Fine (Cone Filter) ) ) [2] => Array ( [id] => 28:2cb4f8195695d2295f74c04959e7a1cc [description] => 45th Parallel Blend [quantity] => 1 [price] => 6.75 [options0] => Array ( [name] => Weight/Caffeine [value] => 1/2 lb. REGULAR ) [options1] => Array ( [name] => Grind [value] => Fine (Cone Filter) ) ) [3] => Array ( [id] => 125 [description] => Ekobrew filter for Keurig $18.00 [quantity] => 1 [price] => 18.00 ) ) ; ordertype=SALE;