A woman who stole her elder sister's credit cards and identity card, and went on to commit a series of offences was jailed for 27 months on Wednesday.

Wee Yat Mui, 39, pleaded guilty to eight charges - two each of of theft and forgery and four of cheating - and had 34 other charges considered during her sentencing. The total amount lost in all the charges was $26,254.

A district court heard that the former sales engineer not only made unauthorised transactions on her sister, accountant Wee Yat Lian's credit cards but also impersonated the 43-year-old to apply for the surrender of her insurance policies by forging documents.

She also used her sister's IC to subscribe for three mobile phone lines. After that, she cut up the IC in two and disposed of the pieces.

The court heard that the sisters, who were living together in Bedok with their mother, were not on good terms for a long time.

Sometime in December 2005, Yat Mui formed the idea to sabotage her sister to teach her a lesson.

She stole the complainant's two credit cards from her wallet which was left unattended at home. She then went on a shopping spree, buying jewellery, movie tickets and a mobile phone, among other things.

The complainant lodged a police report on Dec 23 that year, stating that unauthorised transactions had been made on her credit card. She subsequently found her IC missing as well and several of her insurance policies had been surrendered.

Yat Mui was later arrested and charged in 2006 for the offences but jumped bail.

She remained at large until her arrest on Aug 27 this year.

Her lawyer Raymund Anthony said his client was in financial trouble and had sought help a number of times from her sister but failed to get any money from her. Out of desperation, she was driven to steal her sister's credit cards and identity card. Her sister has since forgiven her, he added.