If possible, what is the range for the cost of repair?
Hi Michael, if the damages are not covered by the warranty (e.g. physical damage), the cost is up to $175. Since it might be too expensive to repair it, considering it's an old model, it might be worth changing for a newer model, such as the Moto G, the Alcatel Idol 3 or the LG G3: http://koo.do/1GgRxzH. If you wish to repair ir, simply go to a Koodo store and rep will help you out http://koo.do/kdostore. Thank you!
Check with Kijiji for local suppliers. Quoted flat rate for S3 charging port is around $50 in Sherbrooke, QC.